Billionaire Ken Griffin Has Spent $40 Million To Keep The Senate Red, But Snubs Trump's Favorite Texan

Ken Griffin has put roughly $40 million into Republican midterm efforts this year and could double that by November, according to the Wall Street Journal. The money runs through nearly every competitive Senate race in the country - except for one... Ken Paxton's run for a seat in Texas, which won't see a dime of it.

According to the report, the Citadel founder has no plans to help the Texas Republican nominee - the candidate President Trump pushed onto the ballot by helping end John Cornyn's Senate career. The Journal notes that donors rarely broadcast who they're refusing to fund. When one does - a day before super PACs file their quarterly reports, and eight days before Senate Majority Leader John Thune headlines a Washington fundraiser for Paxton - it's fair to assume other donors are meant to hear it.

The refusal lands in the middle of an argument Republicans have been having since late May, sometimes privately and increasingly on the record: who pays for the candidates Trump forced on the party? The president's own political action committee, MAGA Inc., was sitting on roughly $382 million as of last month, the Boston Globe reported, and hasn't said what the money is for. Cornyn, asked about funding the man who beat him, told Semafor: "I think he can spend his money."

Where Ken Is Spending

Griffin's biggest check this cycle, $10 million, went to the Senate Leadership Fund, the super PAC aligned with Thune, according to the Journal. He gave $2.5 million apiece to groups backing Sen. Dan Sullivan in Alaska and Sen. Susan Collins in Maine, and $1.5 million to one supporting Rep. Ashley Hinson in Iowa's open-seat race. The Cook Political Report rates Alaska and Maine as tossups, while Iowa leans Republican - a state Trump carried by double digits in 2024. On the House side, he gave $5 million in May to the Congressional Leadership Fund and $5.5 million split between two other groups, including one that backs veterans running as Republicans. "I am able to fully fund these races because of his steady investment cycle over cycle," said Chris Winkelman, the Congressional Leadership Fund's president.

The people familiar with his giving told the Journal that Griffin is focused on the Senate because six-year terms give his money the longest reach into the party's future after Trump, whose term ends in January 2029. A senator elected this fall serves until January 2033. Whoever wins the White House in 2028 will be confirmed, funded and investigated by the class Griffin is paying to elect right now.

He has already said which 2028 candidate he'd rather see. At the Allen & Company conference in Sun Valley on July 8, interviewer Andrew Ross Sorkin asked Griffin to pick between Secretary of State Marco Rubio and Vice President JD Vance in a hypothetical primary. Griffin said he'd be "predisposed" toward Rubio, whose 2016 campaign he backed with $5 million to a supporting super PAC, Axios reported. (The Journal notes the question offered only those two names.) According to Revenge, Axios reporter Alex Isenstadt's book on the 2024 campaign, Griffin urged Trump not to put Vance on the ticket at all. Vance has said he'll decide on a presidential run after the midterms.

Griffin's distance from Trump goes back years. Worth an estimated $50 billion-plus, he was the country's fifth-biggest political donor in 2024, giving $108 million by OpenSecrets' count - about 37 percent of what top donor Elon Musk spent that cycle - and none of it went to Trump, whose campaigns he has never funded. He spent $5 million that cycle keeping Nikki Haley's primary bid alive. He voted for Trump - "not with a smile on my face," he said afterward - gave $1 million to the inaugural committee, and has since praised the administration's border enforcement while criticizing its tariffs and its pressure on the Federal Reserve. If his giving doubles as projected, Griffin would join the cycle's top tier of donors, which a New York Times analysis this spring put at Andreessen Horowitz ($115.5 million), George Soros ($102.9 million) and Elon Musk ($85 million).

Then There's Texas

Paxton, the state attorney general, launched his challenge in April 2025, and Senate Republican leadership spent heavily to stop him. Cornyn and his allies put more than $90 million into the primary, according to the Texas Tribune, including $11 million from One Nation, the nonprofit arm of Thune's political operation; pro-Cornyn groups outspent Paxton's side by roughly nine to one. Cornyn finished a point ahead in the March 3 first round but short of a majority. A week before the runoff, Trump endorsed Paxton, calling him "a true MAGA warrior." Cornyn became the first Republican senator in Texas history to lose his party's nomination, in a spring when Trump-backed challengers also took out Sen. Bill Cassidy in Louisiana and Rep. Thomas Massie in Kentucky.

Democratic nominee James Talarico, an Austin state representative, had raised more than $40 million through his primary and took in $600,000 in the two hours after Paxton won, his campaign said. Paxton had raised $7.6 million and had $2.3 million left as of early May, per FEC records cited by NBC News. Republican operatives told the network that holding the state, with its roughly 20 media markets, could cost outside groups $100 million. Meanwhile, anti-Paxton Republicans handed Democrats their script: a 2023 impeachment on corruption charges by the Republican-led Texas House (the state Senate acquitted him) and years of legal and ethics controversies besides.

That history, the people familiar with Griffin's giving told the Journal, is why he's staying out.

The $10 million question

There's a catch to Griffin's ghosting of Paxton - The Senate Leadership Fund hasn't ruled Texas out. If the group goes in this fall, Griffin's $10 million goes in with it; money doesn't stay in labeled jars. So either "no plans to help Paxton" has some give in it, or the leadership PAC's most prominent donor has effectively told it where not to spend. Neither Griffin's office nor Latcham has answered that question on the record.

The backdrop: Republicans hold the Senate 53-47, Democrats need to net four seats, and Griffin's side of the ledger has strengthened without him lifting a finger. In Maine, Democrat Graham Platner - who won the June 9 primary with about 70 percent of the vote - formally quit the race July 10 over a sexual assault allegation he denies, leaving the party to pick a replacement at a 601-delegate convention on July 25, two days ahead of the ballot deadline. Collins, backed by Griffin's $2.5 million and $42 million in SLF reservations, currently has no opponent at all.

The quarterly filings land Wednesday, and the Paxton fundraiser is a week later.